The frequentist approach is normally used for the experimental investigation of the stochastic GW signals from EWPT, where the detectability of the signals is measured by the corresponding signal-to-noise ratio (SNR) [1]}, [2]}
\(\rho =\sqrt{\mathcal {N}\mathcal {T}_{\rm obs} \int _{f_{\mathrm {min}}}^{f_{\mathrm {max}}}df\left[\frac{h^{2} \Omega _{\mathrm {GW}}(f)}{h^{2} \Omega _{\mathrm {exp}}(f)}\right]^{2}},\) 
